- Category: Motor Graders ➔
- Manufacturer: John Deere ➔
- Model: 770B ➔
The John Deere 770B Motor Grader is a powerful and versatile machine designed for grading and shaping roads and surfaces with precision. With a turbocharged engine producing 155 horsepower and 522 lb-ft of torque, this grader is capable of efficiently handling various terrains. Its hydraulics system provides a flow rate of 52.4 gallons per minute, while the closed-center variable displacement pump ensures smooth operation. Equipped with a moldboard measuring 12 feet in width and various operational weights up to 35,450 pounds, the 770B Motor Grader guarantees high performance and reliability.
General Specifications
Circle
Blade Tip Angle - Front | 49 degrees
|
Blade Tip Angle - Rear | 5 degrees
|
Diameter | 59 in (150 cm)
|
Max Lift Above Ground | 19 in (47 cm)
|
Max Reach Outside Tires - Left | 85 in (216 cm)
|
Max Reach Outside Tires - Right | 83 in (211 cm)
|
Rotation | 360 degrees
|
Shift Left | 31 in (79 cm)
|
Shift Right | 29 in (73 cm)
|
Dimensions
Blade Base | 9 ft (3 m)
|
Front Ground Clearance | 2 ft (1 m)
|
Height to Top of Isomount Cab | 10 ft (3 m)
|
Overall Length | 28 ft (9 m)
|
Tandem Axle Wheelbase | 5 ft (2 m)
|
Wheelbase | 20 ft (6 m)
|
Width Over Tires | 8 ft (2 m)
|
Engine
Aspiration | Turbocharged
|
Displacement | 466 cu in (7,636 cu cm)
|
Engine Model | 6076T
|
Max Power | 155 hp (116 kw)
|
Net Power Gears 7-8 | 155 hp (116 kw)
|
Net Torque Gears 7-8 | 522 lbs ft (708 nm)
|
Number of Cylinders | 6
|
Power Measured @ | 2200 rpm
|
Torque Measured @ | 1100 rpm
|
Front Axle
Ground Clearance | 2 ft (1 m)
|
Oscillation - Total | 32 degrees
|
Wheel Lean | 20 degrees
|
Hydraulic System
Pump Flow | 52 gpm (198 lpm)
|
Pump Type | Closed Center Variable Displacement
|
Moldboard
Moldboard Height | 24 in (61 cm)
|
Moldboard Thickness | 1 in (2 cm)
|
Moldboard Width | 12 ft (4 m)
|
Side Shift Left | 27 in (68 cm)
|
Side Shift Right | 27 in (68 cm)
|
Operating Specifications
Alternator Supplied Amperage | 45 amps
|
Circle Gearbox Fluid Capacity | 1 gal (4 l)
|
Cooling System Fluid Capacity | 10 gal (38 l)
|
Fuel Capacity | 90 gal (341 l)
|
Hydraulic System Fluid Capacity | 23 gal (87 l)
|
Max Operation Weight - Front Axle | 9,870 lbs (4,477 kg)
|
Max Operation Weight - Rear Axle | 25,580 lbs (11,603 kg)
|
Max Operation Weight - Total | 35,450 lbs (16,080 kg)
|
Oil System Fluid Capacity | 7 gal (25 l)
|
Operating Voltage | 24 volts
|
Std Operation Weight - Front Axle | 8,700 lbs (3,946 kg)
|
Std Operation Weight - Rear Axle | 22,550 lbs (10,229 kg)
|
Std Operation Weight - Total | 31,250 lbs (14,175 kg)
|
Tandem Case Fluid Capacity (each) | 5 gal (19 l)
|
Tire Size | 14.00-24
|
Steering System
Articulation Angle | 25 degrees
|
Turning Radius | 22 ft (7 m)
|
Transmission
Max Speed - Forward | 25 mph (41 kph)
|
Max Speed - Reverse | 9 mph (14 kph)
|
Number of Gears - Forward | 8
|
Number of Gears - Reverse | 4
|
Transmission Type | Power Shift
|